Gun Store Robbery Reversal Carded

Listen up, genius. You think that "no u" is a valid comeback? Let me break it down for your simple mind. The robber tries to rob the gun salesman, but the gun salesman pulls a reverse card, hitting the robber with the ol' "no u." It's supposed to be funny because it's unexpected and childish, like something a toddler would say, but instead of causing humor it causes cringe.